Forty-seven-year-old Kimberly Smedley was sentenced to three years in prison Thursday in federal court in Baltimore. She was also ordered to pay a $25,000 fine and more than $8,000 in restitution.

According to her plea agreement, Smedley administered the injections in hotel rooms in several cities, using silicone intended to be used for metal or plastic lubrication, as an additive for paint and coatings, and as furniture or automotive polish.

The customers, who wanted their buttocks enlarged, paid between $500 and $1,600 in cash for each session.